<div class="menu-bar">
    <ul class="nav nav-pills">
        <li><a href="<?php echo $host; ?>/home"><span>Home</span></a></li>
        <li><a href="#"><span>How To Use</span></a></li>
        <li><a href="<?php echo $host; ?>/explore"><span>Explore</span></a></li>
    </ul>
</div>